Empire type world clock for indicating time around the globe

1909 in France
Etienne de Gounevitch
Armand Gustave Couaillett

Creative Commons LicenseThis image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence

Buy this image as a print 

License this image for commercial use at Science and Society Picture Library

1909-199 Pt1: 'Empire' type world clock for indicating the time around the globe at various longitudes with
Science Museum Group Collection
© The Board of Trustees of the Science Museum

'Empire' type world clock for indicating the time around the globe at various longitudes with accessories, French, 1909. Patented by Etienne de Gounevitch and Armand Gustave Couailett (British patent No. 23, 449, 1909).

This clock is designed in the form of a globe, and driven by a clockwork motor to make a full rotation from west to east every 24 hours. By following longitudinal lines, it is possible to tell the time at any given point on the globe. A brass ball can be attached to indicate the sun. It was called an Empire clock because it enabled the time in all the countries of the British Empire to be checked at a glance.

On display

Science Museum: Science Museum, Blythe House

If you are visiting to see this object, please contact us in advance to make sure that it will be on display.


Time Measurement
Object Number:
brass (copper, zinc alloy), metal (unknown), paper (fibre product)
terrestrial globe, chronosphere, clock mechanism
  • visual and verbal communication
  • globe - cartographic sphere
Permanent collection

Cite this page


We encourage the use and reuse of our collection data.

Data in the title, made, maker and details fields are released under Creative Commons Zero

Descriptions and all other text content are licensed under a Creative Commons Attribution 4.0 licence

Using our data


Download catalogue entry as json

Download manifest IIIF

Our records are constantly being enhanced and improved, but please note that we cannot guarantee the accuracy of any information shown on this website.